<!DOCTYPE html>
<html>

	<head>
		<meta charset="utf-8" />
		<title>DOM操作-练习</title>
		<style type="text/css">
			body {
				font-size: 13px;
				line-height: 25px;
			}
			
			table {
				border-top: 1px solid #333;
				border-left: 1px solid #333;
				width: 300px;
			}
			
			td {
				border-right: 1px solid #333;
				border-bottom: 1px solid #333;
			}
			
			.center {
				text-align: center;
			}
		</style>
		<script src="js/jquery-3.1.1.min.js"></script>
		
	</head>

	<body>
		<table border="0" cellspacing="0" cellpadding="0" id="myTable">
			<tr id="row1">
				<td>书名</td>
				<td>价格</td>
			</tr>
			<tr id="row2">
				<td>看得见风景的房间</td>
				<td class="center">&yen;30.00</td>
			</tr>
			<tr id="row3">
				<td>60个瞬间</td>
				<td class="center">&yen;32.00</td>
			</tr>
		</table>
		<input name="b1" type="button" value="增加一行" id="b1"/>
		<input name="b2" type="button" value="删除第2行" id="b2"/>
		<input name="b3" type="button" value="修改标题样式" id="b3"/>
		<input name="b4" type="button" value="复制最后一行" id="b4"/>

	</body>

</html>
<script>
	// 179000845江沿蒙
		$(function(){
			//增加一行
			function addRow(){
				$("#myTable").append("<tr id='row4'><td>幸福从天而降</td><td class='center'>&yen;18.50</td></tr>");
			}
			$("#b1").click(addRow);
			//修改标题样式
			function updateRow(){
				$("#row1").css({"font-weight":"bold","text-align":"center","background-color":"#cccccc"});
			}
			$("#b3").click(updateRow);
			//删除第2行
					function delRow(){
						$("#row2").remove();
					}
					$("#b2").click(delRow);
			//复制最后一行
				function copyRow(){
					$("#row3").clone().appendTo("#myTable");
				}
				$("#b4").click(copyRow);
					 })
</script>